<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/bootstrap.min.css"/>
    <style>
        body{
            background-color: #f5c6cb;
        }
        #regDiv{
            margin: 200px auto;/*设置DIV居中显示*/
            width: 600px;
            height: 350px;
            border: 1px solid #f1b0b7;
            padding:10px;
            padding-top: 30px;
            padding-bottom: 10px;
            border-radius: 3%;
            background-color:#d1ecf1;
            box-shadow: 40px 40px 25px #adb5bd;
        }
    </style>
</head>
<body>
<div id="regDiv">
    <h2 align="center">用户登录</h2>
    <form id="regForm" action="login.do" method="post">
        <div class="form-group">
            <label>用户名</label>
            <input type="text" class="form-control" name="user_name"/>
        </div>

        <div class="form-group">
            <label>密码</label>
            <input type="password" class="form-control" name="user_password"/>
        </div>

        <button type="submit" class="btn btn-primary btn-lg btn-block">登录</button>
    </form>
</div>


<script src="js/jquery-3.4.1.min.js"></script>
<script src="js/popper.min.js"></script>
<script src="js/bootstrap.min.js"></script>

</body>
</html>